extapps 0.1.8

Standalone Switchboard panels for content-pipeline workflows (map compositing, photogrammetry, Substance Painter automation, texture conversion, mesh conversion).

Standalone Switchboard panels for content-pipeline workflows — map compositing, texture conversion and channel packing, photogrammetry, mesh conversion, and Substance / Marmoset / Unity automation.

extapps

Each app is a self-contained subpackage that registers itself with uitk's ExternalAppHandler via the uitk.external_apps.in_process entry-point group. Hosts (tentacle, mayatk, etc.) discover and launch them automatically — no host-side imports required.

Tools

Tool	Purpose	Engine	Docs
compositor	Multi-layer texture compositing	pythontk.core_utils.engines.textures.map_compositor	→
photogrammetry	End-to-end photogrammetry runs — frame extraction/curation → align → mesh → texture, with per-engine presets	bundled runners (Metashape SDK, RealityScan RSNode, gaussian splat)	Metashape engine → · Tuning →
substance_workflow	Adobe Substance 3D Painter automation (JSON-RPC bridge)	bundled (SDK-specific)	→
marmoset_workflow	Marmoset Toolbag automation (RPC bridge + render templates)	bundled _marmoset_engine (SDK-specific)	TBD
unity_workflow	Unity workflow panel	bundled	TBD
converter	Texture conversion (normal DX↔GL, smoothness↔roughness, spec→PBR, bump→normal, optimize, flip/swizzle channels), color+alpha pack/unpack, PBR prep	pythontk.ImgUtils / MapFactory	TBD
packer	Channel-pack and unpack textures via per-channel sources (ORM/MRAO/MSAO/MetallicSmoothness templates)	pythontk.ImgUtils / MapFactory	TBD
mesh_convert	FBX → glTF / GLB conversion	pythontk.file_utils.mesh_convert	TBD

Install

pip install extapps

Launch (standalone)

python -c "from extapps.texture_maps.compositor import CompositorUI; CompositorUI().show(pos='screen', app_exec=True)"

Launch (from a host)

Hosts that load uitk's ExternalAppHandler discover apps automatically:

sb.handlers.external_app.launch("compositor")

Dependencies

• pythontk — domain logic
• uitk — UI framework
• qtpy — Qt abstraction
• unitytk — Unity project bridge (used by unity_workflow)

The metashape_workflow tool additionally requires the Agisoft Metashape Python module to be importable (installed alongside Metashape itself). The substance_workflow tool requires an Adobe Substance 3D Painter install (auto-detected) to launch sessions.